| Schedule of Debt Securities, Held-To-Maturity |
HTM debt securities are classified as short-term or long-term based upon the contractual maturity of the underlying investment. | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | December 31, 2024 | | (in thousands) | Amortized Cost | | Gross Unrealized Gains | | Gross Unrealized Losses | | Estimated Fair Value | | Accrued Interest | Short-term: | | | | | | | | | | | | | | | | | | | | | Corporate debt securities | $ | 12,374 | | | $ | 3 | | | $ | (6) | | | $ | 12,371 | | | $ | 83 | | | | | | | | | | | | | Total | $ | 12,374 | | | $ | 3 | | | $ | (6) | | | $ | 12,371 | | | $ | 83 | | | | | | | | | | | |
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| Schedule of Investments |
As of June 30, 2025 and December 31, 2024, the Company’s equity investments consisted of the following (in thousands): | | | | | | | | | | | | | | | | | As of | | | June 30,
2025 | | December 31,
2024 | | Equity Method Investment in LanzaJet | | $ | — | | | $ | 4,363 | | | Equity Security Investment in SGLT | | 14,990 | | | 14,990 | | | Total Investment | | $ | 14,990 | | | $ | 19,353 | |
The following table presents summarized aggregated financial information of our equity method investment (in thousands): | | | | | | | | | | | | | | Six Months Ended June 30, | | 2025 | | 2024 | | Selected Statement of Operations Information: | | | | | Revenues | $ | 5,035 | | | $ | 10,800 | | | Gross profit | 1,729 | | | 5,303 | | | Net loss | (39,628) | | | (10,204) | | | Net loss attributable to the Company | $ | (14,396) | | | $ | (2,478) | | | | | | | As of | | June 30, 2025 | | December 31, 2024 | | Selected Balance Sheet Information: | | | | | Current assets | $ | 31,027 | | | $ | 79,060 | | | Non-current assets | 275,585 | | | 271,019 | | | Current liabilities | (19,159) | | | (29,069) | | | Non-current liabilities | $ | (307,981) | | | $ | (303,352) | |
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